AdGroupBidModifierOperation

A single operation (create, remove, update) on an ad group bid modifier.

Fields
update_mask	FieldMask FieldMask that determines which resource fields are modified in an update.
Union field operation operation. The mutate operation. operation can be only one of the following:
create	AdGroupBidModifier Create operation: No resource name is expected for the new ad group bid modifier.
update	AdGroupBidModifier Update operation: The ad group bid modifier is expected to have a valid resource name.
remove	string Remove operation: A resource name for the removed ad group bid modifier is expected, in this format: customers/{customer_id}/adGroupBidModifiers/{ad_group_id}~{criterion_id}